Release 6.0.3 (#79)

* build: Release 6.0.3

* build: Back to snapshot for development

Author: NotMyFault

build.gradle.kts

@@ -25,7 +25,7 @@ java {
     withSourcesJar()
 }
 
-version = "6.0.3-SNAPSHOT"
+version = "6.0.4-SNAPSHOT"
 
 repositories {
     mavenCentral()